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ഒരാൾ ഒരു ക്യൂവിൽ മുന്നിൽ നിന്ന് 15-ാമതും പുറകിൽ നിന്ന് 10-ാമതും ആണെങ്കിൽ ക്യൂവിൽ ആകെ എത്ര പേർ?

A25

B23

C30

D24

Answer:

D. 24

Read Explanation:

ശരിയായ ഉത്തരം 24 ആണ്.

കണക്കാക്കിയ രീതി:
ഇത്തരം ചോദ്യങ്ങളിൽ ആകെ ആളുകളുടെ എണ്ണം കാണാൻ മുന്നിൽ നിന്നുള്ള സ്ഥാനവും പുറകിൽ നിന്നുള്ള സ്ഥാനവും തമ്മിൽ കൂട്ടി അതിൽ നിന്നും 1 കുറയ്ക്കണം (കാരണം ഒരേ വ്യക്തിയെത്തന്നെയാണ് രണ്ടു തവണ എണ്ണിയത്).

ആകെ ആളുകൾ = (മുന്നിൽ നിന്നുള്ള സ്ഥാനം + പുറകിൽ നിന്നുള്ള സ്ഥാനം) - 1

ആകെ ആളുകൾ = (15 + 10) - 1

ആകെ ആളുകൾ = 25 - 1 = 24


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